Get-DanglingDnsRecords fails with: Attempted to divide by zero #389
Description
Describe the bug
When running Get-DanglingDnsRecords with the switch '-FetchDnsRecordsFromAzureSubscription' using a service connection through Azure DevOps we see the error: 'Attempted to divide by zero' for multiple customers, but not everyone.
Reproduce
Create a pipeline to run the code from using a Service connection with full read permissions on the intermediate management group in Azure.
It should use the 'FetchDnsRecordsFromAzureSubscription' switch to do so.
Expected behavior
We expect it to output a hash table and CSV-files, as this works as expected when running it locally.
Screenshots
VERBOSE: Exporting function 'New-AzResourceGraphQuery'.
VERBOSE: Exporting function 'Remove-AzResourceGraphQuery'.
VERBOSE: Exporting function 'Update-AzResourceGraphQuery'.
VERBOSE: Exporting function 'Test-DotNet'.
VERBOSE: Exporting function 'Preload-Assembly'.
VERBOSE: Exporting cmdlet 'Search-AzGraph'.
VERBOSE: Importing cmdlet 'Search-AzGraph'.
VERBOSE: Importing function 'Get-AzResourceGraphQuery'.
VERBOSE: Importing function 'New-AzResourceGraphQuery'.
VERBOSE: Importing function 'Remove-AzResourceGraphQuery'.
VERBOSE: Importing function 'Update-AzResourceGraphQuery'.
VERBOSE: Sent top=100 skip=0 skipToken=
VERBOSE: Received results: 1
Get-DanglingDnsRecords: /agent/_work/1/s/management/src/powershell/private/Get-DanglingCNameRecord.ps1:21
Line |
21 | … rdsOutput = Get-DanglingDnsRecords -FetchDnsRecordsFromAzureSubscript …
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Attempted to divide by zero.
##[error]PowerShell exited with code '1'.
##[error]PowerShell wrote one or more lines to the standard error stream.
Environment- if applicable
Task : Azure PowerShell
Description : Run a PowerShell script within an Azure environment
Version : 5.243.7
Logs- if applicable
Additional context
The weird part it, that we've seen it working, and we've seen it failing (mostly fail). It seems to be some unhandled logic in the code.